Modularized detachable battery box electric bicycle
By adopting a modular and detachable battery box design, and utilizing a magnetic coupling plate and guide rail structure, the problem of electric bicycle battery boxes requiring tools for disassembly and assembly is solved, enabling fast and reliable battery box replacement and meeting the needs of shared battery boxes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHIQI TECHNOLOGY (HUZHOU) CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-01
AI Technical Summary
The current method of installing electric bicycle battery boxes requires tools, which makes replacement time-consuming and cannot meet the needs of shared battery box replacement.
The modular, detachable battery box design utilizes a magnetic coupling plate and guide rail structure, combined with magnetic repulsion and guide grooves, to achieve quick assembly and disassembly of the battery box. Through the self-correcting effect of the magnetic repulsion of the magnetic plate and magnetic coupling plate, and the guiding effect of the guide rail and guide groove, tool-free quick replacement is achieved.
It enables rapid replacement of the battery box, reduces replacement time, improves disassembly and assembly efficiency, and enhances connection reliability, meeting the needs of shared battery box replacement scenarios.
Smart Images

Figure CN224184412U_ABST
Abstract
Description
Modular removable battery box electric bicycle Technical Field
[0001] This utility model relates to the field of electric bicycle technology, and in particular to a modular electric bicycle with a detachable battery box. Background Technology
[0002] Electric bicycles are mechatronic personal transportation vehicles that use batteries as auxiliary power and are based on ordinary bicycles. They are equipped with motors, controllers, batteries, throttles, brake levers, and display instrument systems. The batteries are charged when the electric bicycle is parked, and the electric bicycle moves by the discharge of the batteries, which drives the motor and transmission mechanism to rotate the wheels.
[0003] Currently, electric bicycle battery boxes are generally installed using bolt fixing or simple clip structures, requiring tools to assist in disassembling and assembling the battery box. This makes battery box replacement time-consuming and cannot meet the needs of shared battery box replacement scenarios. Summary of the Invention
[0004] To overcome the technical defects of the existing technology, this utility model provides a modular electric bicycle with a detachable battery box.
[0005] The technical solution adopted by this utility model is: a modular electric bicycle with a detachable battery box, including an electric bicycle body, the electric bicycle body including a frame, a battery box installed on the frame, and a positioning and disassembly mechanism for disassembling and assembling the battery box on a main beam tube inclined on the frame.
[0006] The positioning and disassembly mechanism includes an installation plate on the main beam tube, a receiving frame plate at the bottom of the installation plate, two first guide rails on the inclined surface of the installation plate, a magnetic suction plate embedded in the inner end wall of the receiving frame plate, a first guide groove that cooperates with the first guide rails on the back of the battery box, a magnetic coupling plate that matches the magnetic suction plate at one end of the battery box, a first strong magnet and a recessed gold-plated electrode contact on the surface of the magnetic coupling plate, and a second strong magnet that repels the magnetic poles of the first strong magnet and a protruding gold-plated electrode contact that matches the recessed gold-plated electrode contact on the surface of the magnetic suction plate.
[0007] The mounting plate is slidably connected to a protective cover plate that matches the receiving frame plate. The upper end of the protective cover plate is provided with a plug-in block. The receiving frame plate is provided with a plug-in groove plate that matches the plug-in block. A spring pin is embedded in the plug-in block. The plug-in groove plate is provided with a limiting hole that matches the pin of the spring pin.
[0008] Preferably, the spring pin has a first wedge-shaped surface on its pin rod, and the inner wall of the insertion slot plate has a second wedge-shaped surface that matches the first wedge-shaped surface.
[0009] Preferably, the recessed gold-plated electrode contact has an inward recess depth of 0.5-1mm, and the protruding gold-plated electrode contact has an inward protrusion height of 0.5-1mm.
[0010] Preferably, a sealing gasket is provided at the connection between the protective cover plate and the receiving frame plate and the mounting plate.
[0011] Preferably, the bottom end of the protective cover is provided with a second guide groove, and the mounting plate is provided with a second guide rail that matches the second guide groove.
[0012] Preferably, the cross-sections of the first guide rail and the second guide rail are T-shaped.
[0013] Preferably, the protective cover is provided with a handle at the top.
[0014] The beneficial effects of this utility model are as follows: When replacing the battery box, press down on the spring pin to separate it from the limiting hole, push the protective cover upward, slide the protective cover upward, and then slide the battery box out from the inside of the receiving frame plate. This allows the first guide slide rail to engage with the first guide groove, and the new battery box is slidably installed into the inside of the receiving frame plate. Under the self-correcting effect of the magnetic repulsion force of the magnetic suction plate and the magnetic coupling plate, tool-free quick replacement of the battery box is achieved. Finally, slide the protective cover downward so that the plug block engages with the battery box... The plug-in slot plates are matched and plugged in. Under the elastic force of the spring pin, the pin of the spring pin matches and plugs in with the limiting hole, thus completing the installation of the battery box. Through the guiding action of the first guide slide rail and the first guide slide groove, and under the self-correcting action of the magnetic repulsion force of the magnetic suction plate and the magnetic coupling plate, tool-free quick replacement of the battery box is achieved, reducing the battery box replacement time and improving the disassembly and assembly efficiency. In addition, the matching connection of the recessed gold-plated electrode contacts and the protruding gold-plated electrode contacts makes the connection more reliable and meets the needs of the shared battery box replacement scenario. Attached Figure Description
[0015] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.
[0016] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 is an enlarged structural schematic diagram of the positioning and disassembly mechanism in Figure 1 of this utility model;
[0018] Figure 3 is a cross-sectional view of the positioning and disassembly mechanism of this utility model;
[0019] Figure 4 is a schematic diagram of the connection structure between the mounting plate and the receiving frame plate of this utility model;
[0020] Figure 5 is a schematic diagram of the battery box structure of this utility model;
[0021] Figure 6 is a schematic diagram of the protective cover structure of this utility model;
[0022] Figure 7 is a schematic diagram of the sealing gasket structure of this utility model.
[0023] Explanation of reference numerals in the attached drawings: 1. Electric bicycle body; 2. Frame; 3. Battery box; 4. Main beam tube; 5. Positioning and disassembly mechanism; 501. Mounting plate; 502. Receiving frame plate; 503. First guide rail; 504. Magnetic suction plate; 505. First guide groove; 506. Magnetic coupling plate; 507. First strong magnet; 508. Recessed gold-plated electrode contact; 509. Second strong magnet; 5010. Protruding gold-plated electrode contact; 5011. Protective cover plate; 5012. Insertion block; 5013. Insertion groove plate; 5014. Spring pin; 5015. Limiting hole; 5016. First wedge-shaped surface; 5017. Second wedge-shaped surface; 6. Sealing gasket; 7. Second guide groove; 8. Second guide rail; 9. Handle. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.
[0025] As shown in Figures 1-7, this embodiment provides a modular electric bicycle with a detachable battery box, including an electric bicycle body 1. The electric bicycle body 1 includes a frame 2, on which a battery box 3 is mounted. A positioning and disassembly mechanism 5 for disassembling and assembling the battery box 3 is provided on a main beam tube 4 inclined on the frame 2. The positioning and disassembly mechanism 5 includes a mounting plate 501 on the main beam tube 4. A receiving frame plate 502 is provided at the bottom end of the mounting plate 501. Two first guide rails 503 are provided on the inclined surface of the mounting plate 501. A magnetic suction plate 504 is embedded in the inner end wall of the receiving frame plate 502. A first guide groove 505 that cooperates with the first guide rails 503 is provided on the back of the battery box 3. One end of the battery box 3 is provided with a matching magnetic suction plate 504. The magnetic coupling plate 506 has a first strong magnet 507 and a recessed gold-plated electrode contact 508 on its surface. The magnetic plate 504 has a second strong magnet 509 that repels the magnetic pole of the first strong magnet 507 and a protruding gold-plated electrode contact 5010 that matches the recessed gold-plated electrode contact 508 on its surface. A protective cover plate 5011 that matches the receiving frame plate 502 is slidably connected to the mounting plate 501. The upper end of the protective cover plate 5011 has a plug block 5012. The receiving frame plate 502 has a plug groove plate 5013 that matches the plug block 5012. A spring pin 5014 is embedded in the plug block 5012. The plug groove plate 5013 has a limiting hole 5015 that matches the pin of the spring pin 5014.
[0026] The spring pin 5014 has a first wedge-shaped surface 5016 on its pin rod, and the inner wall of the insertion slot plate 5013 has a second wedge-shaped surface 5017 that matches the first wedge-shaped surface 5016. During the insertion process, the pin rod of the spring pin 5014 is automatically compressed, which can achieve self-locking.
[0027] The recessed gold-plated electrode contact 508 is recessed to a depth of 0.5-1mm, and the protruding gold-plated electrode contact 5010 is protruding to a height of 0.5-1mm, ensuring the contact stability of the protruding gold-plated electrode contact 5010 after it is embedded in the recessed gold-plated electrode contact 508, while avoiding interference damage.
[0028] A sealing gasket 6 is provided at the connection between the protective cover plate 5011 and the receiving frame plate 502 and the mounting plate 501. The sealing gasket 6 is made of EPDM rubber, which improves the sealing performance.
[0029] The bottom end of the protective cover plate 5011 is provided with a second guide groove 7, and the mounting plate 501 is provided with a second guide rail 8 that matches the second guide groove 7. When the protective cover plate 5011 is covered, the protective cover plate 5011 can be quickly positioned by the cooperation of the second guide groove 7 and the second guide rail 8.
[0030] The cross-sections of the first guide rail 503 and the second guide rail 8 are T-shaped, which can serve as a limiting function, and the protective cover 5011 has higher stability after installation.
[0031] The protective cover 5011 is provided with a handle 9 at the top, which facilitates the pulling and disassembly of the protective cover 5011.
[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0033] During operation, when replacing battery box 3, press down on the spring pin 5014 to separate it from the limiting hole 5015. Push the protective cover 5011 upwards, causing it to slide upwards. Then, slide the battery box 3 out of the receiving frame plate 502, allowing the first guide rail 503 to engage with the first guide groove 505. This allows the new battery box 3 to be slidably installed into the receiving frame plate 502. Under the self-correcting effect of the magnetic repulsion force of the magnetic suction plate 504 and the magnetic coupling plate 506, tool-free and quick replacement of battery box 3 is achieved. Finally, slide the protective cover 5011 downwards, causing the insertion block 5012 to... The battery box 3 is installed by inserting it into the slot plate 5013 and then into the limiting hole 5015 under the elastic force of the spring pin 5014. The battery box 3 is installed by inserting it into the slot plate 5013 and then into the limiting hole 5015 under the elastic force of the spring pin 5014. The battery box 3 can be quickly replaced without tools by the guiding action of the first guide slide rail 503 and the first guide slide groove 505, and by the self-correcting action of the magnetic repulsion force of the magnetic suction plate 504 and the magnetic coupling plate 506. This reduces the replacement time of the battery box 3 and improves the disassembly and assembly efficiency. In addition, the recessed gold-plated electrode contact 508 and the protruding gold-plated electrode contact 5010 are matched and connected to make the connection more reliable and meet the needs of the shared replacement battery box 3 scenario.
[0034] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.
Claims
1. A modular electric bicycle with a detachable battery box, comprising an electric bicycle body (1), wherein the electric bicycle body (1) includes a frame (2), and a battery box (3) is mounted on the frame (2), characterized in that: The main beam tube (4) inclined on the frame body (2) is provided with a positioning and disassembly mechanism (5) for disassembling and assembling the battery box (3); the positioning and disassembly mechanism (5) includes a mounting plate (501) on the main beam tube (4), a receiving frame plate (502) at the bottom end of the mounting plate (501), two first guide slide rails (503) on the inclined surface of the mounting plate (501), a magnetic suction plate (504) embedded in the inner end wall of the receiving frame plate (502), a first guide slide groove (505) that cooperates with the first guide slide rails (503) on the back of the battery box (3), a magnetic coupling plate (506) that matches the magnetic suction plate (504) at one end of the battery box (3), and a first strong magnet (507) and a recess on the surface of the magnetic coupling plate (506). The gold-plated electrode contact (508) is provided on the surface of the magnetic suction plate (504), which is provided with a second strong magnet (509) that repels the magnetic pole of the first strong magnet (507) and a protruding gold-plated electrode contact (5010) that matches the recessed gold-plated electrode contact (508); a protective cover plate (5011) that matches the receiving frame plate (502) is slidably connected to the mounting plate (501), and a plug block (5012) is provided at the upper end of the protective cover plate (5011). A plug groove plate (5013) that matches the plug block (5012) is provided on the receiving frame plate (502). A spring pin (5014) is embedded in the plug block (5012), and a limiting hole (5015) that matches the pin of the spring pin (5014) is provided on the plug groove plate (5013).
2. The modular detachable battery box electric bicycle according to claim 1, characterized in that: The spring pin (5014) has a first wedge-shaped surface (5016) on its pin rod, and the inner wall of the port of the insertion slot plate (5013) has a second wedge-shaped surface (5017) that matches the first wedge-shaped surface (5016).
3. The modular detachable battery box electric bicycle according to claim 1, characterized in that: The recessed gold-plated electrode contact (508) has an inward recess depth of 0.5-1mm, and the protruding gold-plated electrode contact (5010) has an inner and outer protrusion height of 0.5-1mm.
4. The modular detachable battery box electric bicycle according to claim 1, characterized in that: A sealing gasket (6) is provided at the connection between the protective cover plate (5011) and the receiving frame plate (502) and the mounting plate (501).
5. The modular detachable battery box electric bicycle according to claim 1, characterized in that: The bottom end of the protective cover plate (5011) is provided with a second guide groove (7), and the mounting plate (501) is provided with a second guide rail (8) that matches the second guide groove (7).
6. The modular detachable battery box electric bicycle according to claim 1, characterized in that: The cross-sections of the first guide rail (503) and the second guide rail (8) are T-shaped.
7. The modular detachable battery box electric bicycle according to claim 1, characterized in that: The protective cover (5011) is provided with a handle (9) at the top.